[PATCH v3 09/12] media: staging: rkisp1: stats: protect write to 'is_streaming' in start_streaming cb

[Dafna Hirschfeld]

The field stats->is_streaming is written in 'start_streaming' callback
without the stats->lock protection.
The isr might run together with the callback so 'spin_lock_irq'
should be used.

Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld at collabora.com>
Acked-by: Helen Koike <helen.koike at collabora.com>
---
 drivers/staging/media/rkisp1/rkisp1-stats.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/rkisp1/rkisp1-stats.c b/drivers/staging/media/rkisp1/rkisp1-stats.c
index 6aa18d970f2b..51c64f75fe29 100644
--- a/drivers/staging/media/rkisp1/rkisp1-stats.c
+++ b/drivers/staging/media/rkisp1/rkisp1-stats.c
@@ -157,7 +157,9 @@ rkisp1_stats_vb2_start_streaming(struct vb2_queue *queue, unsigned int count)
 {
 	struct rkisp1_stats *stats = queue->drv_priv;
 
+	spin_lock_irq(&stats->lock);
 	stats->is_streaming = true;
+	spin_unlock_irq(&stats->lock);
 
 	return 0;
 }
-- 
2.17.1